tinney



(No Model) T. B. TINNBY. GAS RETORT LID. No. 582,560. Patented May 11,1897.

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UNITED STATES :PATENT OFFICE.

THOMAS B. TINNEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO VILLIAM MCDONALD, OF SAME PLAGE.

GAS-RETORT LID.

SPECIFICATION forming part Of Letters Patent No. 582,560, dated llay 1 1, 1897'.

Application filed :Tune 5, 1896. Serial N0. 594,426. (No model.)

To all whom it may concern.'

Be it known that I, THoMA-s B. TINNEY, a citizen of the UnitedStates, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Gas-Retorts, of which the following is a specification.

One object of my invention is to provide the mouthpiece ends of gas-retorts with means to prevent Contact of tar with the packing on the lid of the retort when the latter is being removed, a further object being to provide means for holding the packing-ring in place on the lid without perforating said ring for the reception of screws or pins, and a still further object being to provide simple and efficient means for holding the lid in place on the mouthpiece, such means permitting the ready removal of the lid, so as'to completely expose the said mouthpiece. These objects I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in Which- Figure lis a perspective view of the mouthpiece of a gas-retort constructed in accordance with my invention. Fig. 2 is a sectional plan view of the same. Fig. 3 is a view showing the mouthpieces of two superposed retorts, illustrating a tar-shield forming part of my in vention; and Fig. 4 is a perspective view of a retainer employed in connection with a packing on the lid or cover.

A represents the mouthpiece of a gas-retort, which may be of the usual character and adapted to be closed at the outer end by a lid or cover B, which has an internal flange a fitting snugly into the mouth of the retort, said flange being gradually widened from top to bottom, as shown in Figs. 2 and 3, so that it projects into the retort to a considerably greater extent at the bottom than at the top. Surrounding the flange a is a packing-ring b, of asbestos or other heat-resisting material, this ring being compressed between the front end of the mouthpiece and the flange CZ of the lid when the latter is properly adjusted and secured in its place, thereby forming a gastight joint between the mouthpiece and lid.

In order to hold the packing-ring in place on the flange ct of the lid without perforating said ring for the reception of retaining screws or pins, I provide the lid with a clamp D,

which is preferably made of sheet metal and has spurs or lugs at each edge, the spurs on the inner edge engaging with the packingring b and serving to press the same into contact with the flange a, as shown in Figs. 2 and 3, while the spurs on the outer edge of the clamp bear upon the outer side of the lid.

rlhe clamp D is split and provided with lugs g, which can be drawn together by means of a suitable bolt, thereby confining the clamp to the lid and also causing it to exercise the proper retaining influence upon the packingring b.

Directly beneath the outer end of each mouthpiece A is an inclined plate F, which projects outwardly some distance beyond the mouthpiece and is supported upon angular frames FQ mounted upon or secured to an upper and lower mouthpiece, as shown in Fig. 3. The purpose of this plate F and of the widened flanges of the lids B is to prevent contact With the packing-ring b, carried by either lid, of tar either from the retort to which the lid is applied or from the retort above the same.

In an ordinary form of gas-retort lid I[he tar can escape from the retort as soon as the lid is loosened, and hence can come into contact with the packing-ring, and as the tar hardens immediately upon cooling by exposure to the air it forms a hard substance upon the packing-ring and detracts from the uniform flexibility or elasticity of the latter necessary to insure the desired tight joint between the mouthpiece and the lid. In the same Way tar is likely to leak or drop from an upper mouthpiece onto the packing-ring carried by the lid of the mouthpiece below with the same objectionable result. The plate F, however, effect-ually prevents the dropping of tar from one mouthpiece onto the packingring carried by the lid of' the mouthpiece below, while the Widening of the lower portion of the internal fiange a of each lid insures the removal of the lid to such an extent beyond the end of the mouthpiece before said lower portion of the flange is removed and the escape of tar permitted that any excess of such tar to the packing-ring of the lid is effectually prevented.

The lid B is mounted upon a Cotter-bar G,

IOO

which is forked at one end and is at said end pivoted to the outer end of a link 1f, the opposite end of which is pivoted to lugs t" on the mouthpiece.

The lid B has outwardly-proj ect-in g lugs m, slotted for the reception ot' vertical pins m upon the Cotter-bar, and said bar has a downwardly-projecting arm n with a forwardlyprojecting toe or finger n, bearing against the outer face of the lid B, as shown in Figs. l and 3.

The central portion of the Cotter-bar constitutes a nut which receives a screw-stem p, bearing upon a rib 1J on the outer face of the lid.

The free end of the cotter-bar G-that is to say, the end opposite that which is hung to the link has a hooked and Weighted catch H, which engages with an eye s, projecting from a lug 3' on the mouthpiece. Hence when the lid is swung into position so as to close the end of the mout-hpiecc it can be temporarily retained in position by the engagement of the catch II with the eye s until the screw-stem p can be tightened in order to sceure the lid rmly in place.

Vhen it is desired to remove the lid, the screw-stem p is backed off, which loosens the catch II, and as the outer end of said catch is heaviest it automatically releases its hold upon the eye s, so that the Cotter-bar is i11- stantly freed and can be swung back, so as to carry the lid away from the end of the mouthpiece, the complete exposure of the latter being permissible owing to the use of the swinging link i, which permits the lid to be moved to a lateral position wholly beyond the mouthpiece. Then the lid is being swung into place, the projecting end of the cotter-bar engages with a guide-bar projecting from the same lug` which carries the eye s, this bar fc being inclined at its outer end, so that it lifts the Cotter-bar into proper vertical position and supports it in such position while it is being locked to the eye s.

The lugs m and the pin m and fingern provide three points of support for the lid upon the Cotter-bar. Hence said lid is always held in its proper vertical position on the bar, while it can be readily lifted therefrom by a direct vertical movement, the finger n offering no obstacle to such movement.

Having thus described my invention, I claim and desire to secure by Letters Patent l. The combination of a series of superposed retort-mouthpieces, with tar-shields each adapted to receive the tar from a mouthpiece above and prevent it from coming into contact with the lid of a mouthpiece below, said tar-shields consisting of plates carried by angular frames supported upon upper and lower mouthpieces, substantially as specified.

2. A retort-lid having a flange projecting inwardly therefrom some distance from the outer edge of the lid, said flange extending entirely around the lid and being wider at the bottom than at the top, said widened portion fitting snugly to the bottom of the mouthpiece, and a packing-ring mounted upon the seat formed by said inwardly projecting flange and bearing upon the outer end of the mouthpiece, substantially as specified.

The combination of the retort-lid having an inwardly-projecting flange and packingring mounted thereon, and a split retainingband engaging with the retort-lid and packing-ring and serving to hold the latter in position on the lid, the ring projecting beyond said band so as to engage with the mouthpiece, substantially as specified.

4. The combination of the retort-mouthpiece having a retaining-eye thereon, ahin ged Cotter-bar having a hooked catch adapted to engage said eye, said catch being weighted so as to be self-releasing when the cotter-bar is relieved from strain, a lid mounted upon the Cotter-bar, and a screw-stem carried by the Cotter-bar and serving to press said lid against the end of the mouthpiece, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOS. B. TINNEY. lVitnesses:

Jos. H. KLEIN, F. E. BEcLrroLD. 

